No.
I was like you and I didn't play ranked because of GD (old forums) for the longest time, but then when the teaser for S3's Victorious skin came out I really wanted it, so I decided to go into ranked and it really wasn't that bad. Keep a positive attitude, try to be a leader, know at least 3 roles (back then, playing support was not fun for most people, so being able to Mid, support and AD Carry was more than enough) and don't start arguing with people over small things. If you try to help someone and they don't want your help, move on and accept that the game is probably lost. There will be other games to play and as long as you try your best, you've done all you can.
In the long run, games can only be as shitty as you make them.
p.s. I've never been bronze, so I dunno if this applies to the lowest brackets, as I've only ever played in Silver and Gold (which isn't that high, either).